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Re: [ARSCLIST] Acetate tape discolours tape box
At 03:18 PM 10/18/2006, Bev Lambert wrote:
You are right. IPI only makes claims for the use of AD strips on acetate
Joe Iraci and his colleagues at CCI would be able to tell you more
about the audio media. It seems tape has had more of the SSS -sticky
shed syndrome than VS. I got a bit carried away with the acetic acid
Joe and I hope next year to work on a project that he had already
proposed and then I proposed expanding it to test freezing of tape.
While he is aware of the VS issue in tape, I don't think Joe has done
any studies specifically for that. In fact, I'm not sure there are
any studies which is why I'm pushing here and there trying to see
what the real answers are. Many of the reports of white "exudate"
when tapes were frozen at high altitudes (which could not be
duplicated in a climate chamber with the same alleged parameters--at
least I'm not aware of any duplication) were with PET-based tape and
not acetate based tape, but the storage recommendations are
broad-brush. I think we may need to segregate tapes, but also,
theoretically, SSS can be retarded by dry storage (I'm not sure if
cold helps or not).
However, I've been seeing tapes that do not respond to baking and I'm
calling that SBS - Soft Binder Syndrome. Fortunately at least two of
these tape types play well at 4C - put the player in the fridge, shut
the door, let everything equalize, press play.
Richard L. Hess email: richard@xxxxxxxxxxxxxxx
Aurora, Ontario, Canada (905) 713 6733 1-877-TAPE-FIX
Detailed contact information: http://www.richardhess.com/tape/contact.htm
Quality tape transfers -- even from hard-to-play tapes.